Morphology of ESCs grown on GIBCO® MEFs (inactivated)

Figure 1. Bright-field images of ESCs.
(A) H9 human embryonic stem cells (hESCs) cultured on a layer of MEF feeder cells. The bright-field image of the hESCs at passage 1 was obtained with a 10x objective.
(B) C57 mouse embryonic stem cells (mESCs) cultured on a layer of MEF feeder cells. Bright-field images of the mESCs were taken 2 days after plating, with a 10x objective.